*{
    margin: 0;
    padding: 0;
    font-family: 微软雅黑;

}
.left{
    float: left;
}
.right{
    float: right;
}
.box-1{
    width:500px;
    height:400px;
    margin: 20px auto;
}
.box-1 .xiugai{
    text-align: center;
    height: 60px;
    line-height: 60px;
}
.box-1>div{
    height:40px;
    line-height: 40px;
}